The American Educational Visual Electromagnetic Spectrum Chart is used for study of the relationship between unseen electric and magnetic waves.

The chart compares wave length and frequency scales, as well as radio and microwave usage, and x-ray and gamma ray absorption for detailed examination.

The Spectrum Chart includes an information sheet for instructional or individual use.

The chart is laminated for durability, and measures 39 x 27 inches (L x H) and is suitable for grades 5 to 8 and ages 10 to 13.

Poster comes in rolled shipping tube.